METHOD TO CHECK UP DETONATING CORD AND DETONATING CORD PACKAGE

摘要

FIELD: blasting work. ^ SUBSTANCE: invention relates to detonating cord package. In compliance with this invention, detonating cord is wound in one plane to make a flat spiral. Proposed invention covers also the method to check up detonating cord for defects consisting in subjecting packed cord prior to supply. ^ EFFECT: efficient and reliable check. ^ 8 cl, 2 dwg